CN107190309A - A kind of method in stainless steel surfaces formation micro-nano hole - Google Patents
A kind of method in stainless steel surfaces formation micro-nano hole Download PDFInfo
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- CN107190309A CN107190309A CN201710365378.5A CN201710365378A CN107190309A CN 107190309 A CN107190309 A CN 107190309A CN 201710365378 A CN201710365378 A CN 201710365378A CN 107190309 A CN107190309 A CN 107190309A
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- stainless steel
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/02—Etching
- C25F3/06—Etching of iron or steel
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/088—Iron or steel solutions containing organic acids
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
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- Electrochemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
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Abstract
The invention discloses a kind of method in stainless steel surfaces formation micro-nano hole, comprise the following steps：(1) stainless steel degreasing, is carried out first, and ultrasonic wave cleaning is coordinated at a temperature of 40 55 DEG C；(2), the stainless steel part after degreasing is cleaned with deionized water repeatedly；(3), corroded using chemical method, with corrosive liquid in stainless steel surfaces formation spot corrosion；(4), the stainless steel part after chemical attack is cleaned up repeatedly with deionized water, and 20~40min of baking at 120 140 DEG C；(5) stainless steel part after drying, is subjected to electrochemistry reaming corrosion, electrochemical corrosion is carried out using single-pulse current, you can so that stainless steel surfaces formation micro-nano hole.The present invention is in the nanometer micropore of stainless steel surfaces formation, and process stabilizing, controllable good, then be molded through NMT, the strength of connection between the metal and plastic cement of acquisition is high, corrosion-resistant good.
Description
Technical field
The invention belongs to corrosion of metal field, it is related to a kind of method in stainless steel surfaces formation micro-nano hole.
Background technology
With developing rapidly for the industries such as automobile industry, digital camera, personal computer and communication, in many products
, it is necessary to be combined metal and high polymer material using a kind of simple, low cost and reliable technique in structure design
Together.Both are bonded using macromolecular adhesive or card slot type structure more than traditional technique, wherein coating technique exists following
Shortcoming：(1), the uniformity controlling of gluing is relatively difficult；(2), the less part applying glue of area is relatively difficult；(3), rear end plus
Engineering sequence easily influences the glue-joint strength of adhesive；(4), in use, the heat of product vibrations or release, energy hold
It is easily caused the destruction of glue-line framework；(5) requirement for being extremely difficult to good seal performance, is used alternatingly under high/low temperature.Using neck
It is heavier that formula technique is easily caused overall structure.
Since last century end, Japanese DaCheng Co., Ltd starts to research and develop nanometer injection molding technology, and realizes in 2004 this
The mass of Joining Technology between metal and high polymer material, i.e. NMT technologies (Nano Molding Technology).Initially
Principle it is as follows, metal material is cleaned and after drying, with acid liquid corrosion, and by the immersion of T treatment fluids, in metal surface anchoring
Upper organic active site, high polymer material injection is reacted with active site, makes high polymer material and metal base in
Interbed is securely attached to together.Because metal and high polymer material can be firmly combined together by this technology, and not
Need bulky notch, therefore after NMT technologies occur, cause automobile industry, digital camera, personal computer and
The close attention of the industries such as communication, and gradually start in above-mentioned industry practical.
Existing NMT technologies can solve the attachment problem between each system's aluminium and a variety of plastic materials well, be used
Plastic material mainly have PPS (polyphenylene sulfide), PBT (polyester), PA (nylon).Also there are multiple related patent applications
(CN02805359.1、CN200380104500.X、CN201110437796.3、CN200880008157.1、
CN201510089137.3), but the shortcomings of aluminium alloy has low intensity, corrosion-resistant and feel are poor, using other metals
Substitute aluminium alloy turns into the selection of numerous NMT producers.Stainless steel is a kind of choosing relatively easily realized for substituting aluminium alloy
Select, patent disclosed in existing this respect haves the shortcomings that technique is unstable, poor controllability.
The content of the invention
The present invention gives a kind of simple, controllable, relatively environment-friendly in stainless steel (300 be to be with 400) surface shape
Into the micro-nano hole forming technique for being suitable for NMT technologies, this technology is expected to further widen reality of the stainless steel in NMT technologies
Using.
The concrete technical scheme of the present invention is as follows：A kind of method in stainless steel surfaces formation micro-nano hole, including it is following
Step：
(1) stainless steel degreasing, is carried out first, i.e., stainless steel metal part is put into the weakly acidic degreasing agent aqueous solution,
Coordinate ultrasonic wave cleaning at a temperature of 40-55 DEG C；
(2), the stainless steel part after degreasing is cleaned with deionized water repeatedly, the residual of surface degreasing agent is removed；
(3), corroded using chemical method, make corrosive liquid in stainless steel surfaces formation spot corrosion；
(4), the stainless steel part after chemical attack is cleaned up repeatedly with deionized water, and 20 are dried at 120-140 DEG C
~40min；
(5) stainless steel part after drying, is subjected to electrochemistry reaming corrosion, you can so that stainless steel surfaces form micro-nano
Hole.
Stainless steel part after corrosion is cleaned in deionized water, and 20~40min is dried at 120-140 DEG C, it
After can carry out NMT injections.
Preferably, corrosive liquid is mixed by following component in step (3)：100 parts of deionized water, 5-10 parts of nitric acid, sulphur
One kind in sour 5-10 parts, 5-10 parts of hydrochloric acid and acetic acid, propionic acid, butyric acid, octanoic acid, adipic acid, ethanedioic acid, malonic acid, succinic acid
Or a variety of common 5-20 parts.
Preferably, in step (3) using corrosive liquid stainless steel surfaces formation spot corrosion method as：Will be stainless after degreasing
Steel part immerses in above-mentioned corrosive liquid repeatedly, is cleaned up after having immersed every time with deionized water, and the temperature control of corrosive liquid is in 40-
70 DEG C, the time of immersion corrosion is 1~3min every time, and the number of times of immersion is 5-10 times.
Preferably, electrochemical corrosive liquid is mixed by following components in step (5)：Solvent uses water, ethanol, positive third
One or more totally 100 parts in alcohol, ethylene glycol and isopropanol, the acid of oxidisability include nitric acid, the concentrated sulfuric acid, hydrochloric acid, chloric acid,
One or more in chlorous acid, perchloric acid, permanganic acid are common 5-40 parts.
Preferably, the method described in step (5) by the stainless steel part progress electrochemistry reaming corrosion after drying is：Using
Single-pulse current carries out electrochemical corrosion, and wherein current density is 20mA/cm2-2000mA/cm2, pulse duty factor is 5%-
100%, etching time is 5-40min.
Using the above method, the present invention stainless steel surfaces formation nanometer micropore, it is process stabilizing, controllable good, then through NMT
Injection, the strength of connection between the metal and plastic cement of acquisition is high, corrosion-resistant good.
Embodiment
Below in conjunction with specific embodiment, invention is described in detail.
Embodiment 1
1st, stainless steel metal part is put into the weakly acidic degreasing agent aqueous solution, ultrasonic wave is coordinated at a temperature of 45-50 DEG C
Cleaning.
2nd, the stainless steel part after degreasing is cleaned with deionized water repeatedly, removes the residual of surface degreasing agent.
3rd, using chemical method corrosion in stainless steel surfaces formation spot corrosion, corrosive liquid is mixed by following several components,
100 parts of deionized water, 5 parts of nitric acid, 5 parts of sulfuric acid, 5 parts of hydrochloric acid, 20 parts of malonic acid.
4th, the stainless steel part after degreasing is immersed in above-mentioned corrosive liquid repeatedly, cleans dry with deionized water after having immersed every time
Only, the temperature control of corrosive liquid is at 45-50 DEG C, and the time of immersion corrosion is 2 minutes every time, and the number of times of immersion is 10 times.
5th, the stainless steel part after chemical attack is cleaned up repeatedly with deionized water, and dried 30 minutes at 140 DEG C.
6th, the stainless steel part after drying is subjected to electrochemistry reaming corrosion, electrochemical corrosive liquid mixed by following component and
It is totally 100 parts of ethylene glycol into, solvent, electrolyte is that 5 parts of hydrochloric acid, chloric acid are 15 parts.
7th, electrochemical corrosion is carried out using single-pulse current, wherein current density is 100mA/cm2, pulse duty factor is
10%, etching time is 35 minutes.
8th, the stainless steel part after corrosion is cleaned in deionized water, and dried 30 minutes at 130 DEG C, can be entered afterwards
Row NMT is molded.
Embodiment 2
1st, stainless steel metal part is put into the weakly acidic degreasing agent aqueous solution, ultrasonic wave is coordinated at a temperature of 50-55 DEG C
Cleaning.
2nd, the stainless steel part after degreasing is cleaned with deionized water repeatedly, removes the residual of surface degreasing agent.
3rd, using chemical method corrosion in stainless steel surfaces formation spot corrosion, corrosive liquid is mixed by following several components,
100 parts of deionized water, 10 parts of nitric acid, 10 parts of sulfuric acid, 10 parts of hydrochloric acid, 10 parts of acetic acid, 10 parts of succinic acid.
4th, the stainless steel part after degreasing is immersed in above-mentioned corrosive liquid repeatedly, cleans dry with deionized water after having immersed every time
Only, the temperature control of corrosive liquid is at 55-60 DEG C, and the time of immersion corrosion is 1 minute every time, and the number of times of immersion is 5 times.
5th, the stainless steel part after chemical attack is cleaned up repeatedly with deionized water, and dried 30 minutes at 140 DEG C.
6th, the stainless steel part after drying is subjected to electrochemistry reaming corrosion, electrochemical corrosive liquid mixed by following component and
Into solvent is totally 100 parts of isopropanol, and electrolyte is that nitric acid is 5 parts and 10 parts of the concentrated sulfuric acid.
7th, electrochemical corrosion is carried out using single-pulse current, wherein current density is 200mA/cm2, pulse duty factor is
20%, etching time is 20 minutes.
8th, the stainless steel part after corrosion is cleaned in deionized water, and dried 30 minutes at 140 DEG C, can be entered afterwards
Row NMT is molded.
Embodiment 3
1st, stainless steel metal part is put into the weakly acidic degreasing agent aqueous solution, ultrasonic wave is coordinated at a temperature of 45-50 DEG C
Cleaning.
2nd, the stainless steel part after degreasing is cleaned with deionized water repeatedly, removes the residual of surface degreasing agent.
3rd, using chemical method corrosion in stainless steel surfaces formation spot corrosion, corrosive liquid is mixed by following several components,
100 parts of deionized water, 10 parts of nitric acid, 5 parts of sulfuric acid, 5 parts of hydrochloric acid, 15 parts of malonic acid.
4th, the stainless steel part after degreasing is immersed in above-mentioned corrosive liquid repeatedly, cleans dry with deionized water after having immersed every time
Only, the temperature control of corrosive liquid is at 65-70 DEG C, and the time of immersion corrosion is 2 minutes every time, and the number of times of immersion is 3 times.
5th, the stainless steel part after chemical attack is cleaned up repeatedly with deionized water, and dried 30 minutes at 140 DEG C.
6th, the stainless steel part after drying is subjected to electrochemistry reaming corrosion, electrochemical corrosive liquid mixed by following component and
Into solvent is ethanol, normal propyl alcohol mixture, and each 50 parts, electrolyte permanganic acid is 15 parts.
7th, electrochemical corrosion is carried out using single-pulse current, wherein current density is 500mA/cm2, pulse duty factor is
50%, etching time is 5 minutes.
8th, the stainless steel part after corrosion is cleaned up in deionized water, and dried 30 minutes at 130 DEG C, can entered afterwards
Row NMT is molded.
Injection molding result is tested
The stainless steel part finally corroded is put into the size of stainless steel part and the size of working of plastics in mould, grinding tool to meet
Regulation in GB/T 7124-2008, final test is carried out according to the regulation in GB/T 7124-2008, injection resin used
For the PBT of toray, the trade mark is 2107G-X01, and test result as shown in table 1, obtains preferably tensile shear strength, said
Bright method of the invention has preferable application prospect.
The tensile shear strength of the embodiment 1~3 of table 1
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope of present disclosure, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (5)
1. a kind of method in stainless steel surfaces formation micro-nano hole, it is characterised in that comprise the following steps：
(1) stainless steel degreasing, is carried out first, i.e., stainless steel metal part is put into the weakly acidic degreasing agent aqueous solution, in 40-55
Coordinate ultrasonic wave cleaning at a temperature of DEG C；
(2), the stainless steel part after degreasing is cleaned with deionized water repeatedly, the residual of surface degreasing agent is removed；
(3), corroded using chemical method, make corrosive liquid in stainless steel surfaces formation spot corrosion；
(4), the stainless steel part after chemical attack is cleaned up repeatedly with deionized water, and at 120-140 DEG C dry 20~
40min；
(5) stainless steel part after drying, is subjected to electrochemistry reaming corrosion, you can so that stainless steel surfaces formation micro-nano hole.
2. the method according to claim 1 in stainless steel surfaces formation micro-nano hole, it is characterised in that in step (3)
Corrosive liquid is mixed by following component：100 parts of deionized water, 5-10 parts of nitric acid, 5-10 parts of sulfuric acid, 5-10 parts of hydrochloric acid and second
One or more in acid, propionic acid, butyric acid, octanoic acid, adipic acid, ethanedioic acid, malonic acid, succinic acid are common 5-20 parts.
3. the method according to claim 1 or 2 in stainless steel surfaces formation micro-nano hole, it is characterised in that step (3)
In using corrosive liquid stainless steel surfaces formation spot corrosion method as：Stainless steel part after degreasing is immersed into above-mentioned corrosive liquid repeatedly
In, cleaned up after having immersed every time with deionized water, the temperature control of corrosive liquid at 40-70 DEG C, every time immersion corrosion when
Between be 1~3min, the number of times of immersion is 5-10 times.
4. the method according to claim 1 in stainless steel surfaces formation micro-nano hole, it is characterised in that in step (5)
Electrochemical corrosive liquid is mixed by following components：Solvent uses one in water, ethanol, normal propyl alcohol, ethylene glycol and isopropanol
Plant or a variety of totally 100 parts, the acid of oxidisability is included in nitric acid, the concentrated sulfuric acid, hydrochloric acid, chloric acid, chlorous acid, perchloric acid, permanganic acid
One or more common 5-40 parts.
5. the method in stainless steel surfaces formation micro-nano hole according to claim 1 or 4, it is characterised in that step (5)
Described in by after drying stainless steel part carry out electrochemistry reaming corrosion method be：Electrochemistry is carried out using single-pulse current rotten
Erosion, wherein current density are 20mA/cm2-2000mA/cm2, pulse duty factor is 5%-100%, and etching time is 5-40min.
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| CN201710365378.5A CN107190309A (en) | 2017-05-22 | 2017-05-22 | A kind of method in stainless steel surfaces formation micro-nano hole |
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| CN201710365378.5A CN107190309A (en) | 2017-05-22 | 2017-05-22 | A kind of method in stainless steel surfaces formation micro-nano hole |
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Cited By (5)
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|---|---|---|---|---|
| CN107706740A (en) * | 2017-09-29 | 2018-02-16 | 长春理工大学 | A kind of method that the non-implanted uptake zone of InP-base SLD electric currents is made using electrochemical corrosion technology |
| CN108000794A (en) * | 2017-12-03 | 2018-05-08 | 无锡市恒利弘实业有限公司 | A kind of method of high-bond aluminum or aluminum alloy nano surface injection molding |
| CN108724609A (en) * | 2018-06-22 | 2018-11-02 | 佛山市高明利钢精密铸造有限公司 | A kind of preparation method of anti-bacteria stainless steel composite parts |
| CN108950671A (en) * | 2018-09-25 | 2018-12-07 | 湖南工业大学 | A kind of stainless base steel corrosion-proof wear coating structure and its preparation method and application |
| CN112659456A (en) * | 2019-10-16 | 2021-04-16 | 北京小米移动软件有限公司 | Metal matrix composite part, manufacturing method thereof and terminal shell |
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| CN108724609A (en) * | 2018-06-22 | 2018-11-02 | 佛山市高明利钢精密铸造有限公司 | A kind of preparation method of anti-bacteria stainless steel composite parts |
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